Greater Healing Wave is a Shaman ability learned at level 68 for 11 70 . It is slated to replace the current Shaman spell, [Healing Wave] as a long cast time, high mana cost, large amount of damage healed, situational healing spell. While a new spell called "Healing Wave" will be a healing spell with moderate cast time, moderate healing done, relatively low mana cost which will be the bread and butter of the restoration Shaman. The spell was first announced in Cataclysm shaman preview.
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. It is slated to replace the current Shaman spell, [Healing Wave] as a long cast time, high mana cost, large amount of damage healed, situational healing spell. While a new spell called "Healing Wave" will be a healing spell with moderate cast time, moderate healing done, relatively low mana cost which will be the bread and butter of the restoration Shaman. The spell was first announced in Cataclysm shaman preview.
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Patch 4.0.1 (2010-10-12): Added. 
